	body{
    	margin:0;
    	height:100%;
    	background-color:#ecf5fa;
    }
    .div_1{
    	/*文字垂直居中*/
        /*padding:0 auto;*/
        position:absolute;
    	left:0;
    	top:0;
    	width:100%;
    	line-height:50%;
    	background-color:#336699;
    	color:white;
    }
    .div_2{
    	background-color:white;
    	width:1000px;
    	height:692px;
    	align:center;
    	margin:0px auto;
    	padding:10px;
    }
    h2{
    	padding-top:20px;
    	color:#98c8ef;
    }
    .div_3{
    	height:30px;
    	border-bottom:1px dotted;
    }
    .div_4{
    	margin-top:5px;
    	height:30px;
    	border-bottom:1px dotted;    	
    }
    span{
    	color:#cccccc;
    	margin-left:570px;
    	font-size:10px;
    }
    input{
    	border:none;
    	color:white;
    	background-color:#82b8da;
    }
    .div_5{
    	margin:0px auto;
    	line-height:30px;
    	background:#e6e5e5;
    	color:#706c6a;
        font-size:5px;
    	text-align:center;
    }